🔧 fix(validate.py): add "BaseOutputParser" to the list of input_types in the template_field

🔧 fix(settings.py): add "output_parsers" attribute to the Settings class
The "input_types" list in the template_field of the post_validate_prompt function in validate.py was missing the "BaseOutputParser" type. This fix adds it to the list to ensure proper validation.

The Settings class in settings.py was missing the "output_parsers" attribute. This fix adds the attribute to the class to ensure that the list of output parsers can be properly configured and accessed.

src/backend/langflow/api/v1/validate.py

@@ -42,7 +42,7 @@ def post_validate_prompt(prompt: ValidatePromptRequest):
                     field_type="str",
                     show=True,
                     advanced=False,
-                    input_types=["BaseLoader"],
+                    input_types=["BaseLoader", "BaseOutputParser"],
                 )
 
                 prompt.frontend_node.template[variable] = template_field.to_dict()

src/backend/langflow/settings.py

@@ -19,6 +19,7 @@ class Settings(BaseSettings):
     toolkits: List[str] = []
     textsplitters: List[str] = []
     utilities: List[str] = []
+    output_parsers: List[str] = []
     dev: bool = False
     database_url: str = "sqlite:///./langflow.db"
     cache: str = "InMemoryCache"
@@ -48,6 +49,10 @@ class Settings(BaseSettings):
         self.toolkits = new_settings.toolkits or []
         self.textsplitters = new_settings.textsplitters or []
         self.utilities = new_settings.utilities or []
+        self.embeddings = new_settings.embeddings or []
+        self.vectorstores = new_settings.vectorstores or []
+        self.documentloaders = new_settings.documentloaders or []
+        self.output_parsers = new_settings.output_parsers or []
         self.dev = dev
 
     def update_settings(self, **kwargs):